Click on the discussion tab. Click on Ch. 2 Discussion. There will be other responses already posted. Scroll down to the text box. Do not change the subject line. Enter your reply and click Post.
Choose one other response to reply to. Scroll down to the text box. Do not change the subject line. Begin your reply with: "In response to ...." Enter your text, click Post.
Choose one other response to reply to. Scroll down to the text box. Do not change the subject line. Begin your reply with: "In response to ...." Enter your text, click Post.